Photographic-roll-film holder



July 29, 1930. P. F. SMITH ET AL PHOTOGRAPHIC ROLL FILI HOLDER Filed larch 14, 1927 fffanlfb and ZJl/Boucfier r Patented July 29, 1930 UNITED STATES PATENT OFFICE PRESTON 1!. SMITH AND ZEPHYR N. BOUCHER, F LEWISTON, MAINE PHOTOGRAPHIC-BOLL-FILM HOLDER This invention relates to photographic film strip hangers for use in developing, fixing, washing and drying photographic films, and the present application is a continuation in 6 part of our U. S. application, Serial No. 141,603, filed October 14, 1926.

A primary object of the invention is to provide a simple and elficient hanger of this type in which individual films may be suspended independently so that they may be readily removed at any time and returned without disturbing the other films.

Another object is to provide a film hanger to which the films are attached without the use of any clips and without having any metal above them, which would be liable to cause marks or streaks on the films.

Another object is to provide a hanger of this type which has no complicated, movable or detachable parts to get out of order and be lost.

In carrying out these objects, the invention is susceptible of modification without departin from the spirit or sacrificing any of the a 'antages of the claimed invention; there being shown in the drawing for illustrative purposes, certain preferred and practical forms, in which Fig. 1 represents a front elevation of the single unit type of hanger constructed in accordance with this invention with film strips shown mounted therein, the rack being in section.

Fig. 2 is a perspective view ofthe hanger shown in Fig. 1 with the strips omitted.

Fig. 3 is an enlarged detail cross section on line 3-3 of Fig. 1 showing the grlpplng rods for holding the film.

Fig. 4 is a perspective viewof a rack employed to support a plurality of film holders in spaced relation.

Similar reference characters represent corresponding parts throughout the several figures of the drawings. g

In the construction shown, the holder is formed from a single metal rod 1 bent to pro vide two parallel film-engaging portions 2 and 3 and two inverted L-shaped' hangers at the ends of said fihn-engaging portions. the

50 vertical parts of said hangers being indi- Application filed March 14, 1927. Serial N0. 175,805.

cated at 4 and the outwardly projecting horizontal parts being denoted at 5. The center of the rod is at the outer end of one of the hanger portions 5 and the ends of said rod at the outer end ofthe other of said portions 5, being soldered or otherwise secured together. The rod 1 is resilient and consequently resiliency is imparted to all'portions of the hanger, said resiliency serving to hold the film-engaging portions 2and 3 in definite relation with each other and holding said portions against outward movement other than springing.

In order that a plurality of the improved holders may be properly supported in spaced relation, we provide the rack shown in Fig.

4, said rack consisting ofa rectangular frame 6 having notches 71in the inner sides of two of its opposed side bars. These notches receive thevertical portions 4 of the holders, as will be clear from the dotted lines in Fig. 4 and from Fig. 1.

It will be seen from the foregoing, that the films F which are clamped independently between the rods, may be individually applied 75 and removed at any time during the treating process, without disturbing the other films. By clamping the film strips between the bars or rods, there is no metal above the tops of the films and hence no danger of streaks or other marks, commonly caused by chemical action on metal parts.

Attention is invited to the fact that the rods are of circular form in transverse section, in the present disclosure, as seen most 35 clearly in Fig. 3. This, or an equivalent transverse sectional shape, provides the rods with upper and lower surfaces 3 and3 said upper surfaces 3 converging downwardly, while the lower surfaces converge upwardly. Hence, it is an easy matter to insert the end of a film F between the rods, by forcing it either upwardly or downwardly, and the film will then be effectively held between said rods.

In Fig. 3, the film F has had its upper end downwardly bent and guided by the surfaces 3 into position between the rods, one of said rods then lying within the bight portion F of the film. Fig. 1 also discloses the films engaged in this way with the rods 2 and 3.

When any film is thus engaged with the rods, it is more tenaciously held, than if upwardly inserted between the rods, relying solely upon frictional contact between rods and film, to hold the latter against slippage.

e claim:

1. A film hanger embodying two parallel resilient rod portions between which a film end may be inserted, said rod portions being fixed against relative movement other than springing and being so closely related as to be outwardly sprung by forcing of a film end between them, whereby said film end will be frictionally clamped between said rod portions, vertical rod portions bent upwardly at the ends of said parallel rod portions, and lateral rod portions bent outwardly at the upper ends of said vertical rod portions, said vertical and lateral rod portions providing hangers and holding said parallel rod portions against spreading other than outward springing.

2. A film hanger formed of a single rod and comprising two film-clamping portions disposed side by side, and hanger portions extending upwardly and then outwardly from said film-clamping portions, the center of the aforesaid rod being disposed at the upper extremity of one hanger portion, the ends of th rod being disposed at the upper extremity of the other hanger portion and secured together.

3. A film hanger formed of a single rod and comprising two film-engaging portions disposed side by side, and hanger portions extending upwardly and then outwardly from said film-engaging portions, the center of the aforesaid rod being disposed at the upper extremity of one hanger portion, the ends of the rod being disposed at the upper extremity of the other hanger portion and secured together.

In testimony whereof we have hereunto afiixed our signatures.

PRESTON F. SMITH. ZEPHYR N. BOUCHER. 

